RE: Fwd: Linux Kernel 5.12.10 Walkman USB DAC support issues

Hi Greg,

On Tue, Jul 27, 2021 at 12:37:28AM +0100, Razgriz375 (Neil) wrote:

quoted

[  109.668465] usb 1-1: USB disconnect, device number 2
[  110.084429] usb 1-1: new high-speed USB device number 5 using xhci_hcd
[  110.237963] usb 1-1: New USB device found, idVendor=054c, idProduct=0b8c, bcdDevice= 1.00
[  110.237989] usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[  110.238002] usb 1-1: Product: WALKMAN
[  110.238011] usb 1-1: Manufacturer: Sony
[  110.238019] usb 1-1: SerialNumber: 10458B55477916
[  110.342104] usb 1-1: 1:7 : unsupported format bits 0x100000000
[  110.343953] usbcore: registered new interface driver snd-usb-audio

Looks like you removed the device and then added it back?  And it says
the device is supported by the kernel now, what does not work properly?

But earlier in boot these messages are seen:
[    1.908489] usb 1-1: New USB device found, idVendor=054c, idProduct=0ca1, bcdDevice= 1.00
[    1.908503] usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[    1.908508] usb 1-1: Product: WALKMAN
[    1.908513] usb 1-1: Manufacturer: Sony
[    1.908516] usb 1-1: SerialNumber: 10458B55477916
[    2.195821] usb-storage 1-1:1.0: USB Mass Storage device detected
[    2.195988] scsi host0: usb-storage 1-1:1.0

ProductId is different, that's strange.

Neil, could you collect the dmesg from the working kernel 5.10 please?
And: is the device expected to be a mass storage (aka USB disk) and sound card in one?

Thanks,
Carsten


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